211000101020123 has 4 divisors (see below), whose sum is σ = 211002507010848. Its totient is φ = 210997695029400.

The previous prime is 211000101020119. The next prime is 211000101020201. The reversal of 211000101020123 is 321020101000112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211000101020123 - 2² = 211000101020119 is a prime.

It is a super-2 number, since 2×211000101020123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211000101020098 and 211000101020107.

It is not an unprimeable number, because it can be changed into a prime (211000101070123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202863811 + ... + 1203039212.

It is an arithmetic number, because the mean of its divisors is an integer number (52750626752712).

Almost surely, 2^{211000101020123} is an apocalyptic number.

211000101020123 is a deficient number, since it is larger than the sum of its proper divisors (2405990725).

211000101020123 is an equidigital number, since it uses as much as digits as its factorization.

211000101020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405990724.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211000101020123 its reverse (321020101000112), we get a palindrome (532020202020235).

The spelling of 211000101020123 in words is "two hundred eleven trillion, one hundred one million, twenty thousand, one hundred twenty-three".